(57) In a preferred embodiment, a device which is capable of being mounted in an opening in a panel, and which is adapted to hold a component, comprises two parallel side portions each being made of a plastic material, each side portion including a depending portion at each end thereof. Each of two moveable arms extends between corresponding ends of said side portions and is hingedly connected thereto. Each moveable arm includes two detents projecting from an outer surface of the arm such that when forces are applied to free end portions of the arms to move the free end portions toward each other, the device is capable of being inserted into an opening in a panel until a face of the panel abuts the depending portions of the side portions whereupon the application of forces is discontinued to allow the arms to move outwardly and cause the detents of each arm to snap-lock into engagement with an opposite side of the panel. Furthermore, the present invention additionally includes means which allows the patch panel to adequately support the component in a position which provides ready frontal access to all wiring associated with any single component.